**2.4 Proper land use**

In addition to climate change and urbanization, food production is confronted with decrease in productive agricultural land. Large-scale urban food production could provide opportunities and take the pressure off agricultural land. Consequently, researchers and practitioners are aiming to separate arable land from production and produce food on a larger scale in and on buildings in high-density urban areas. Scientists visualized the "edible city" and introduced the concept of continuous productive urban landscape (CPUL), recommending the coherent introduction of interlinked productive landscapes into cities as an essential element of sustainable urban infrastructure. One major challenge of urban food production is land availability and access. Principally, there might be large resources of land that could be made accessible for agricultural purposes, but for densely built-up areas and where availability of space often limits the area of production unit, no-space or low-space technologies provide opportunities for space-confined growing [5, 10, 11].

Besides its so many advantages, there are some *disadvantages* of UA associated with potential health risks [2]:

